The question came up (of course it did!) during "Plead the Fifth." Now, keep in mind that Lena's fellow guest in the Clubhouse that night was Maggie Gyllenhaal, whose brother Jake Gyllenhaal is one of Swift's many exes. So, when Lena was asked, "Who has been your least favorite of Taylor Swift's boyfriends?" things could have gotten awkward fast. Luckily, they didn't — well, except for a certain Scottish deejay.

"My least favorite was Calvin Harris, because I felt that he was petty in public, and who needs to do that?" Lena said. Ah, yes, who could forget Harris' infamous Twitter rant against his ex? (OK, make that rants.)

Watch the clip above to see Dunham play "Plead the Fifth" and hear her answers to the rest of Andy's juicy questions.

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